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Carbon Coated Aluminum Foil

Your Professional Carbon Coated Aluminum Foil Supplier

LUOYANG HONGSHENG TRADING CO., LTD , which is a specialized innovative metal manufacturer with professional research and development team, we have modern production lines, and rigorous quality management system. Our mainly products are metal materials including Copper, Steel,Titanium as well as metal alloys etc. We also provide OEM services such as manufacture the products according to customer drawings."TECHNOLOGY AND SERVICE LEADING THE MARKET" has become our company's culture.We expect to establish long-term cooperation with you through high-quality products and professional services.

Carbon Coated Aluminum Foil for Lithium-ion Battery Catho...

Carbon coated aluminum foil is a composite slurry mainly composed of conductive carbon and high-purity electronic aluminum foil, made by transfer coating technology. . The use of functional coatings

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Graphene Coated Aluminium Foil for Lithium Ion Battery

Graphene-coated aluminum foil is an advanced material used in lithium-ion batteries, primarily as a current collector. The application of graphene, a single layer of carbon atoms arranged in a

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Carbon Coated Aluminium Foil for Supercapacitor

Carbon-Coated Aluminum Foil for Supercapacitors is a high-performance material specifically designed to enhance the efficiency and durability of supercapacitors. This foil combines the lightweight

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Carbon Coated Al Foil For Lithium Ion Battery Current Col...

Primer(Conductive Materials) coatings can effectively improve the adhesion of the electrode in lithium batteries, reduce the use of binders, and significantly improve the electrical performance of

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Why Choose Us

Production Market
Our products not only satisfy the demand on the domestic market, also exported to Asia, Africa, Europe and America etc. We set up a long time relationship with our Pakistan,UK,Noway customers for copper tube, copper foil, Titanium tube, Nikle Copper Alloy etc excellent projects due to our good service and professional technical supports.

Product Application
Our product is widely used in air conditioning and new energy vehicle, hardware& components, Power Engineering, industrial motors, wind power, Solar Energy Systems, Electric Vehicle and 5G Telecommunication, Consumer electronics, Petroleum industry, aviation industry, high-tech medical equipment and other industries.

Quality control
We have advanced production equipment and assembly lines, professional r&d team and excellent management team，our products comply with international processes and standards from the material selection, production, quality inspection, packaging, and transportation.

24h online service
We try and respond to all concerns within 24 hours and our teams are always at your disposal in case of any emergencies.

Advantages of Carbon Coated Aluminum Foil

Carbon Coated Aluminum Foil For Lithium-ion Battery Cathode Substrate

Suppression of Battery Polarization and Improved Rate Performance: Carbon-coated aluminum foil effectively reduces battery polarization, lowers heat effects, and enhances the rate performance of the battery.

Reduction of Internal Resistance: By minimizing the dynamic internal resistance amplification during the cycling process, carbon-coated aluminum foil decreases the internal resistance of the battery.

Prolonged Cycle Life: Carbon-coated aluminum foil contributes to improved battery consistency, extending the cycle life of the battery.

Increased Adhesion: Enhanced adhesion between active materials and the current collector reduces the manufacturing cost of electrode sheets and diminishes the amount of binder used.

Protection Against Corrosion of the Current Collector: Carbon-coated aluminum foil efficiently prevents the corrosion of the current collector in the electrolyte, thereby extending the battery's lifespan.

Improved Material Processing Performance: For materials like lithium iron phosphate and lithium titanate, carbon-coated aluminum foil helps improve their processing performance.

Technical Specifications

Base Material

High-purity aluminum (99.9% Al).

Carbon Coating Thickness

Typically 1-10 microns, depending on application requirements.

Electrical Conductivity

≥ 60% IACS (International Annealed Copper Standard).

Tensile Strength

100-300 MPa (depending on thickness and temper).

Temperature Resistance

Stable performance up to 150°C (302°F).

Production process of carbon coated aluminum foil

The manufacturing process of carbon-coated aluminum foil typically involves two main stages: bare foil manufacturing and coating application.

Bare Foil Manufacturing

Firstly, the aluminum foil is produced using the cast rolling-cold rolling process, where raw aluminum ingots and billets are cast into rolled aluminum coils, which are then processed through cold rolling, intermediate annealing, and foil rolling to produce battery-grade aluminum foil.

Coating Application

After bare foil manufacturing, the coating application begins. The carbon coating is applied by evenly covering the aluminum foil surface with conductive carbon slurry. This slurry typically includes conductive materials such as carbon black, graphite flakes, and graphene, which are mixed with film-forming agents, solvents, and additives to create a dense carbon-coated layer. This coating improves the adhesion between the aluminum foil and electrode materials while also reducing internal resistance.

Graphene Coated Aluminium Foil For Lithium Ion Battery

Product Parameters

Thickness/Double Size (μm)	Unit Surface Density (g/m²)	Tensile (Kg/cm)	Bending Resistance	Dyne of Foil 56	Dyne of Carbon Layer 6	Adhesive Tape>8N/cm	Solvent Resistance (NMP,BAC)	Water Resistance
1	0.3~0.7	3.2±0.3	70<	Pass	Pass	Pass	Pass	Pass
2	0.6~1.4	3.2±0.3	70<	Pass	Pass	Pass	Pass	Pass
1	0.3~0.7	4.5±0.3	85<	Pass	Pass	Pass	Pass	Pass
2	0.6~1.4	4.5±0.3	85<	Pass	Pass	Pass	Pass	Pass
1	0.3~0.7	3.2±0.3	70<	Pass	Pass	Pass	Pass	Pass
2	0.6~1.4	3.2±0.3	70<	Pass	Pass	Pass	Pass	Pass
1	0.3~0.7	4.5±0.3	85<	Pass	Pass	Pass	Pass	Pass
2	0.6~1.4	4.5±0.3	85<	Pass	Pass	Pass	Pass	Pass

Applications of Carbon Coated Aluminum Foil

Carbon Coated Aluminum Foil For Battery Cathode Substrate

Graphene Coated Aluminium Foil For Battery

Lithium-Ion Batteries and Lithium-Sulfur Batteries: Carbon coated aluminum foil is used as the current collector in lithium-ion and lithium-sulfur batteries. It enhances the adhesion between the electrode material and the current collector, reduces internal resistance, and improves both charge/discharge efficiency and cycle life. This makes it highly suitable for high-energy-density batteries.

Electric Vehicle Power Batteries (EV, HEV): In the power batteries of electric vehicles, carbon coated aluminum foil effectively reduces the internal resistance, suppresses the growth of lithium dendrites, minimizes the risk of short circuits, extends battery life, increases driving range, making it ideal for high-rate charge and discharge requirements.

Functional Solid Polymer Capacitors: Carbon coated aluminum foil is used as an electrode material in solid polymer capacitors, improving capacity and current handling capabilities, ensuring the stability of the capacitor's performance.

Aluminum Electrolytic Capacitors: In aluminum electrolytic capacitors, carbon coated aluminum foil enhances conductivity and corrosion resistance, ensuring excellent performance under high-frequency and high-temperature conditions.

High-Efficiency Energy Storage Systems: By reducing internal resistance and polarization effects, carbon coated aluminum foil improves the efficiency of charge and discharge processes and the energy output in energy storage systems, making it suitable for both residential and industrial energy storage scenarios.

High Power Industrial Applications: In high power applications such as industrial energy storage and base station power supply, carbon coated aluminum foil ensures efficient energy transmission under high current conditions and exhibits excellent corrosion resistance and stability, even in harsh environments.

Lead time

Quantity (pieces)	1 - 10	> 10
Lead time (days)	3	To be negotiated

FAQ

Q: How is the conductivity of carbon coated aluminum foil, and how does it impact battery performance?

A: Carbon coated aluminum foil has excellent conductivity, and the carbon layer significantly reduces the internal resistance of the battery current collector. Better conductivity leads to higher charge/discharge efficiency, effectively reducing the growth of lithium dendrites and minimizing the risk of short circuits.

Q: Does the coating thickness of carbon coated aluminum foil affect its performance?

A: Yes, the coating thickness directly affects conductivity and adhesion. Typically, the coating thickness is between 1.5 to 3.0 microns, ensuring uniformity and conductivity while also enhancing bonding strength with electrode materials.

Q: How is the corrosion resistance of carbon coated aluminum foil?

A: The application environment for carbon coated aluminum foil in batteries is often harsh, especially under high temperature and high humidity conditions. The carbon coating effectively protects the aluminum foil, preventing electrolyte corrosion, thus improving battery reliability and lifespan.

Q: What are the advantages of carbon coated aluminum foil compared to traditional bare aluminum foil?

A: Compared to traditional bare aluminum foil, carbon coated aluminum foil has lower interfacial resistance and higher conductivity, leading to better charge/discharge performance. Additionally, the carbon coating reduces the use of binders, lowers production costs, and suppresses the growth of lithium dendrites, thereby enhancing battery safety.

As one of the leading carbon coated aluminum foil manufacturers in China, we warmly welcome you to buy high quality carbon coated aluminum foil at competitive price from our factory. For more cheap products, contact us now.

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